D - Cup Outer Diameter | 
                                                                        N/A 3.6875 in93.663 mm | 
                                                                                D1 - Flange Outer Diameter | 
                                                                        N/A 3.9023 in99.118 mm | 
                                                                                C - Cup Width | 
                                                                        N/A 1 in25.4 mm | 
                                                                                C1 - Cup Flange Width | 
                                                                        N/A 0.2188 in5.558 mm |